- Tytuł:
- Study of phase transition in Bi3TiNbO9-BaBi2Nb2O9 ceramics
- Autorzy:
-
Adamczyk, M.
Kusz, J.
Hofmeister, W.
Zubko, M.
Kozielski, L.
Pilch, M.
Bochenek, D.
Wodecka-Duś, B. - Powiązania:
- https://bibliotekanauki.pl/articles/353210.pdf
- Data publikacji:
- 2016
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
dielectric properties
X-ray methods
grain size
phase transition
ceramics - Opis:
- The subject of the paper is lead free bismuth layer structure oxides (1-x)Bi3TiNbO9-xBaBi2N2O9(x=0; 1; 2; 3 mol). The influence of Bi3TiNbO9/BaBi2Nb2O9 ratio on dielectric and structural properties was studied in a wide range of temperatures. Change in the ratio causes a decrease in the maximum value of dielectric permittivity and shifts the temperature of ε`max to low values, leading to linear decreasing of average grain size and linear increasing of ceramics density. These results indicate an augment of the packing degree and the participation of pores are significantly decreased with the increase of BaBi2Nb2O9compound intake. Moreover, for 0.7Bi3TiNbO9-0.3BaBi2Nb2O9 ceramics the dielectric phase transition is broadened and the properties characteristic for the ferroelectric relaxor appear.
- Źródło:
-
Archives of Metallurgy and Materials; 2016, 61, 3; 1503-1510
1733-3490 - Pojawia się w:
- Archives of Metallurgy and Materials
- Dostawca treści:
- Biblioteka Nauki
Artykuł